Plesiosaurus Skeleton Isolated
© Lefteris Papaulakis | Dreamstime.com
1371 Fd. Lyme Regis, West Dorset, UK
5.4"x 5"x 2"
1740 Fd. phosphate mines, Khouribgha, Morroco
There has been a long running debate whether a plesiosaurus could crawl up onto land to lay eggs; their paddles are thought to be far too weak to move their large heavy bodies out the water. Recently, a plesiosaur, fossil discovered on a ranch in Kansas was found to have a juvenile plesiosaur fossil inside suggesting live birth in water. 
Plesiosaurus fossils have been found on every continent with the earliest complete skeleton found in England around 1823.
 Presumed extinct
 Plesiosaurus, Wikipedia, viewed May 21, 2015, http://en.wikipedia.org/wiki/Plesiosaurus
 Plesiosaurus Dinosaur, viewed May 21, 2015http://someinterestingfacts.net/plesiosaurus-dinosaur/
 Ibid., Plesiosaurus, Wikipedia
 Carpenter, Jennifer, Fossilí suggests plesiosaurs did not lay eggs, Science and Environment, BBC News, August 12, 2011, http://www.bbc.com/news/science-environment-14447187